Coronary artery disease involves blockages in the blood vessels of the heart. Treatment for this disease includes medicines and more invasive treatments, such as bypass surgery or percutaneous revascularization. With percutaneous revascularization, doctors insert small balloons or tunnels (stents) attached to flexible tubes (catheters) into the large blood vessels in the patient's groin and thread them up into the heart. The stent and catheter are passed through the blocked vessels, a process that opens up the vessels. Older patients tend to have more complications from this procedure than younger patients. Little is known, however, about how well older patients who survive the procedure feel afterwards compared to younger patients.